G-eain binder



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(No Model.)

G. A. A. RAND.

GRAIN BINDER.

No. 471,826. Patented Mar. 29,1892.

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(No Model.) 2 SheetsShee t 2.

C. A. A. RAND. GRAIN BINDER.

No. 471,826. Patented Mar. 29, 1892.

. of which the following is a full description,

UNITED STATES ATENT OFFICE.

CHARLES A. ANDERSON BAND, on CHICAGO, ILLINOIS, AssIeNoR rorr-m WILLIAM DEERING & COMPANY, or SAME PLACE.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 471,826, dated March 29, 1892.

Application filed December '7, 1891. Serial No. 414,302. (No model.)

To ctZZ whom it may concern:

Be it known that LOHARLEs A. ANDERSON; RAND, of Chicago, in the County of Cook and State of Illinois, have invented certain new and useful Improvements in Grain-Binders,

reference being had to the accompanying drawings, in which Figure l is a front elevation of the parts of a grain-binder necessary to understand my improved device. Fig. 2 is aplan view of the frame and main parts of a grain-binder, showing the relation of the parts forming my improvement thereto.

A is the main binder-frame, (shown in dotted lines in Fig. 2,) forming bearings for the needle shaft B and the knotter drivingshaft 13'.

B is the compressor-shaft, B the packershaft, and B the tripping-shaft, the latter being, in fact, a rock-shaft adapted to transmit motion from the rocking compressor-arms to the clutching device. The shaft B? is necessarily long, and unless made of a heavy bar is elastic to such an extent that when stress is suddenly applied to rock one end it yields without imparting the necessary motion to disengage the clutching device at the other end..

The tripping-compressors are pivoted to a supporting-bar F, and as they are carried upward after the discharge of every bundle they are compelled to rock to an erect position by means of the rock-shaft 13 which is actuated as the binder returns to its position of rest to turn on its axis by being engaged by the clutch-trippingdetent. Theforce of the clutchdetent spring is the power which is usually applied to erect thecompressor-arms. As the latter are quite heavy, it is found that the spring cannot be made sufficiently strong to do this work and yet be light enough to be moved by the compacted grain to permit engagement of the clutching device. This whole matter will be made clear by reference to Fig. 1.

The main wheel C receives motion from the packer-shaft through the instru mentality of the gearing placed within the frame, and shown in dotted lines in Fig. 2. The needleshaft is provided with the crank D, and the wheel 0 with the crank-arm 0', having a suitable wrist, connecting which and the eye in the arm D is the pitman C The wheel 0 is adapted to make one rotation to move the parts to bind each bundle of grain. By means of a cam adapted to actuate the lever E, an arm of which is connected to the arm E, extending from the compressor-shaft, the compressing devices are raised and dropped by the spring-link E Pivoted to the heel of the-needle F is the compressor-bar F, and pivoted to the latter are the compressor-fingers F adapted to rock on the pivot F One of these compressor-arms is provided with a lug F having an eye, into which the arm I), extending from the tripping-shaft B passes.

In Fig.1 the compressor-arms are shown in full and dotted lines, the full lines representing the position in which they stand for receiving the grain as it is forced by suitable packers thereagainst, and the dotted lines representing the position into which they are forced by the accumulated grain.

Loosely mounted upon-the needle-shaft is Y the clutch-detent G, having an upward extension g, formed as one piece with it. Pivoted to the arm D and extending through a hole in the flange of the detent G is the springrod g, having the spring 9 and suitable adj ustment-nut. The detent, when in its position of rest, is adapted to engage the pawl H of the clutching device, as shown in both of the figures, and separate the working parts of the clutch. The detent Gis provided with 8 5 a short arm g and the tripping-shaft with the 'arm 9 the latter adapted to press beneath the short arm g For the purposes of adj ustment a screw g is used.

Referring to Fig. 1, the connection of the tripping-compressors and the clutch-tripping device may be traced. The pressure of the grain against the arms F will cause them to rock downward, and the movement will cause the arm b to reach the position shown in dot- 5 ted lines and the arm 9 to press beneath the arm 9 and cause the detent to rise away from the pawl 11 and allow the spring h of the clutching device to cause the latter'parts to engage. The binder will then pass through Ico one movement and its parts eventually return to position of rest; but, as before stated,

as soon as the bundle is bound the compressor must be dropped away to permit itsejectment. The cam of the Wheel 0, the lever E, the spring connection E the rock-shaft, its arm E, and the connecting-link E serve but as means forv raising and dropping the compressor to permit ejectment, and as far as a proper understanding of the present invention is concerned need not be dwelt upon. With the parts in the position of the dotted lines in Fig. 1 the spring g alone is depended upon for forcing the detent, the rock-shaft B and its arms, and the compressor F to the positions shown by the full lines, and as the said parts must be brought to position very quickly I provide otherpartsWhereby the spring may be aided, and it is these parts and their operation which form the gist of my invention. As stated, g is an arm extending upward from the detent G. It will be seen that the pitman lies adjacent to this arm g. From it I extend a pin or other suitable proj ection, preferably an anti-friction roller K, and so place it that as the pitman is brought to its home position said roller may strike the curved track upon the arm g and carry the latter down With a positive force as it rolls along the track. When the compressing-arms are once brought to their home position and the roller has passed off the track, the light spring is sufficient to hold them there.

What I claim as my invention, and desire 

